The point of bike lights is not to illuminate the way ahead, but to point out to psychopaths weilding a tonne of steel that you exist.

Yes, but the normal lights on her bike were doing that perfectly adequately, and weren't so bizarre and unusual as to confuse said psychopaths. I can't help feeling the overall effect on oncoming drivers might have been counterproductive.

Er... unless you actually ride in the unlit dark, even on-road.